stretch4.java

nanjing university cs 的java课件。 对新手很有用。付课件中源码。

import java.awt.*;
import java.awt.event.*;

public class Stretch4 extends Frame{
	public Stretch4(){
		add(new Button("East"), BorderLayout.EAST);
		add(new Label("West"), BorderLayout.WEST);
		add(new TextField("North"), BorderLayout.NORTH);
		add(new Checkbox("South"), BorderLayout.SOUTH);
		add(new Button("CENTER"));
		this.setSize(400,400);
		this.setVisible(true);
		this.addWindowListener(new WindowAdapter() {
			public void windowClosing ( WindowEvent e) {
				System.exit(0);
			}
		});
	}
	
	public static void main(String[] args){
		Stretch4 s = new  Stretch4();
	}
}